public static int returnSumUntil42(Scanner input) {
   boolean seen42 = false;
   int total = 0;
   int num = 0;
   while (input.hasNext() == true) {
      num = input.nextInt();
      if (num == 42) {
         seen42 = true;
      }
      if (seen42 == false) {
         total += num;
      }
   }
   return total;
}